okay, i just checked bestbuy and i don't think they sell any camcorders with 4k60p or 10 bit for that matter. i could be wrong but i am pretty sure there is no 4k60p camcorders and somewhat sure there is no 10 bit.
say like sony ax camcorders like ax100, ax33, and ax53 all does 4k but at 30fps and in 8 bit color only. it probably can record 60fps but at 2k aka 1080p only.
the ax100 is a 5 years old camcorder and 5 years old processor so its understandable that it can't do 60p in 4k.
the somewhat newer ax33 is probably a 4 years old camcorder that can't do 60 fps either. same thing with the newer ax53 which i suspect is a 3 years old camcorder and much to my surprise can only do 30 fps in 4k. maybe sony and other manufacturers aren't making much profit selling stand-a-lone camcorders so they use like 5 years old processor to cut cost and since the processors are like 5 years old, it can't do 60 fps in 4k without a performance hit so they just use 30 fps instead.
even the newer sony ax700 camcorder doesn't seem to be supporting 60 fps in 4k either and possibly only able to record in 8 bit color. not sure how new this camcorder is but i suppose it might a 2016 years model which is 3 years old. the price tag is really expensive too for a camcorder that only do 8 bit 4k30. sure it has really large image sensor of 1" an possibly quality lens, but its framerate and color bit depth are very lacking there.
i think this is also the case with panasonic 4k camcorders too.
smartphones on the other hands can do 10 bit 4k60 easily if the smartphone is top of the line or near top of the line and within 3 years old or so i think. the reason for this is because most people buy smartphones so manufacturers improve on the smartphone processors and make more powerful processors as year by year goes by. so the newest processors can do 10 bit 4k60 with probably no performance hit depending on how many megapixels the camera's sensor has and no problems supersample it to 4k at 60fps in 10 bit color. unless the megapixels of smartphone is too much like way too high like 48 megapixels or higher, then it might not be able to super sample 48 megapixel down to 4k aka 8 megapixels in 10 bit and 60 fps without pixel binning, or sensor's cropping, and/or line skipping.
possibly the 2 biggest problems with smartphone are that the sensor is much smaller than a mirrorless or dslr sensor but should be equal in size compares to camcorder i think while the 2nd biggest obstacle is little to no optical zoom lens. maybe some can do 3x optical zoom but not higher while a camcorder can go higher than that, as high as 10x to 20x optical zoom without problems but it take up space though.
sorry for my long story but if all you are recording is only 1080p aka 2k in 60 fps at 8 bit then you can't go wrong with many 2k camcorders or 4k camcorders that support 2k60.
